Observed:
openocd: core.c:318: jtag_checks: Assertion `jtag_trst == 0' failed.
The issue was that nothing disabled background polling during calls
from the TCL shell to "jtag_reset 1 1". Fix by moving the existing
poll-disable mechanism to the JTAG layer where it belongs, and then
augmenting it to always pay attention to TRST and SRST.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
- Shrink messaging during resets, primarily by getting rid of
"nothing happened" noise that hides *useful* information.
- Improve: the "no IDCODE" message by identifying which tap only
supports BYPASS; and the TAP event strings.
Related minor code updates:
- Remove two needless tests when examining the chain: we know
we have a TAP, and that all TAPs have names.
- Clean up two loops, turning "while"s into "for"s which better
show what's actually being done.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2736 b42882b7-edfa-0310-969c-e2dbd0fdcd60
and Tcl/external):
- Reorder so *both* paths (TCK/TMS or TRST) can enable TAPs with
ICEpick ... first C code flags TAPs that got disabled, then call
any Tcl code that might want to re-enable them.
- Always call the C/internal handlers when JTAG operations can be
issued; previously that wasn't done when TRST was used.
Plus some small cleanups (whitespace, strings, better messaging
during debug and on some errors) to reset-related code.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2730 b42882b7-edfa-0310-969c-e2dbd0fdcd60
reset operations. Maybe they can't; or it's a "not yet" thing.
Note that the assert/deassert operations can't yet trigger for
OMAP3 because resets currently include JTAG reset in all cases,
resetting the ICEpick and thus disabling the TAP for Cortex-A8.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2620 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- spell "address" right
- list bp/wp params as optional
And make those source lines wrap at sane margins.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2596 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Simplify dumping of register lists by only printing cached values
if they are marked as valid. Most of the time, they are invalid;
so printing *any* value is just misleading.
Note that for ARM7 and ARM9 most EmbeddedICE registers (except for
debug status) could be cached most of the time; and their register
cache isn't maintained properly (many accesses seem to bypass that
cache code).
git-svn-id: svn://svn.berlios.de/openocd/trunk@2594 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This is minimal patch to support FA526 ARMv4 compatible core.
Since it is very similar to ARM920T I tried to reuse as much
code as possible.
CPU and board configs will follow soon.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2292 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Fix parsing bugs for "$target_name mww addr data [count]" ... it was
always requiring the count, instead of just defaulting it to one.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2263 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Extend the internal JTAG event handlers to cover enable/disable,
and use those events to make sure that targets get "examined" if
they were disabled when the scan chain was first set up:
- Remove "enum jtag_tap_event", merge with "enum jtag_event",
so C code can now listen for TAP enable/disable events.
- Report those events so they can trigger callbacks.
- During startup, make target_examine() register a handler to
catch ENABLE events for any then-disabled targets.
This fixes bugs like "can't halt target after enabling its TAP".
One class of unresolved bugs: if the target has an ETM hooked
up to an ETB, nothing activates the ETB. But starting up the
ETM without access to the ETB registers fails...
git-svn-id: svn://svn.berlios.de/openocd/trunk@2251 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Fix some polling issues:
- Don't background-poll disabled TAPs ... this was just a bug
waiting to happen. (And then it happened!)
- Don't fail command line polls of disabled taps; that's not any
kind of error, it's just that you can't do much. But do show
that tap-disabled status.
- Spell "continuous" correctly in the variable name. ;)
Not resolved by this patch: the need for an interlock whereby
other code (like the JTAG layer) can block all other access to
the JTAG layer, e.g. while enabling or disabling TAPs. And
that interlock needs to be timer-safe...
git-svn-id: svn://svn.berlios.de/openocd/trunk@2247 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Make fast_load_image use the helper coverage the standard load_image.
- Improve whitespace in the moved lines.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2239 b42882b7-edfa-0310-969c-e2dbd0fdcd60
- Simplify argument parsing logic using switch statement.
- Use parse_u32 to ensure all values parse properly.
- Return syntax error when mode argument fails to parse.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2236 b42882b7-edfa-0310-969c-e2dbd0fdcd60
David Brownell
Øyvind Harboe
dbrownell
oharboe
ntfreak
duane
zwelch